Plain English Meaning
Being able to see things up close without trouble, but distant objects look fuzzy or out of focus.
Full Definition
A visual condition, commonly called nearsightedness, in which close objects are seen clearly but distant objects appear blurred. It results from the eye focusing images in front of the retina rather than directly on it.
Context Anchor
Encountered in night vision discussions, especially when learning why distant lights, traffic, terrain, or runway cues can be harder to see at night.
Derivation
From the Greek myops, meaning 'short-sighted' — literally 'closing the eyes,' from the way nearsighted people often squint to see far objects. The 'short' in 'short-sighted' refers to the short distance at which vision is sharp.
Why Pilots Care
Uncorrected myopia reduces ability to see distant , terrain, or other at night, directly affecting during , , and .